* {
  margin: 0;
  padding: 0;
}

.input {
  width: 80vw;
  height: 4vh;
  display: block;
  margin: 2vh auto;
  border-radius: 20px;
  text-align: center;
}
.four {
  display: flex;
  text-align: center;
  justify-content: space-around;
  width: 100vw;
  .spanindex {
    a {
      font-size: 35px;
    }
    cursor: pointer;
    font-size: 20px;
    width: 25%;
    display: flex;
    flex-direction: column;
  }
}
